Simply add water to bring these icons of London magically to life - from Trafalgar Square and Tower Bridge to pillar boxes and pigeons. Use the brush provided to sweep water over the designs and watch as vibrant colours magically appear. A perfect travel companion and a mess-free way to keep young children busy. Simply tuck the waterproof back flap under each page as it's painted, to stop water from seeping through to the rest of the book.